ten years ago, the pentagon drone arsenal as you pointed out, 50. thousand 7,500. >> it's a complete transformation. and you can see why. i mean, dreens are incredibly powerful. they provide an instantaneous response. they gather their own surveillance, information. and they're very cheap. they cost less than a conventional aircraft. >> and so that would make for logic in use but as you pointed out, our ability to understand how legally and ethically to use them, we have talked about other countries, for example, and what if it's turned on us? those are the questions that you pose in this in addition to domestically, there are law enforcement agencies, you told me in the break about a dozen. and brings up your rights as a citizen of this country. >> i find it interesting that the technology so disruptive in the battle space, we are still in all kinds of moral quandaries of how to use them, where to use it, what does it mean? now bringing them back home. giving them to law enforcement and also to private industry. >> such as? private industry? >> hol